BASILAR MIGRAINE - A form of complicated migraine headache that is characterized by the addition of bilateral visual symptoms, paresthesias, confusion, stupor, rarely coma, aggressive outbursts, slurred speech, double, vision, and vertigo. Alternating hemiplegias (one-sided weakness) have also been attributed to basilar migraine. May also exist with only some of the aforementioned symptoms as a "partial basilar syndrome."